My daughter turns 4 in two weeks and we will be taking her to WDW in September..she is more than tall enough to ride most of the rides (she's almost 43" inches)..I have warned my hubby just bcuz she is tall enough to get on them doesn't mean she should..but Pirates and Test Track and such..anyone travel with small children and notice a reaction on certain rides..I know all kids are different and it will depend on mood at the time as well :shrug:..She LOVES anything pirate but i showed her the video of the ride and she said it was too scairy...On a side note my son will be 9 months old..I know about rider swap, but what about "boat" rides..will he be able to ride on someone's lap, or will we have to swap? (or anything like that, Mexico, pirates, kilimajaro safaris??) Thanks